@article{fdi:010074085,
  title = {{E}cological mechanisms and phylogeny shape invertebrate stoichiometry : a test using detritus-based communities across {C}entral and {S}outh {A}merica},
  author = {{G}onzalez, {A}. {L}. and {C}{\'e}r{\'e}ghino, {R}. and {D}{\'e}zerald, {O}. and {F}arjalla, {V}. {F}. and {L}eroy, {C}{\'e}line and {R}ichardson, {B}. {A}. and {R}ichardson, {M}. {J}. and {R}omero, {G}. {Q}. and {S}rivastava, {D}. {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {1. {S}toichiometric differences among organisms can affect trophic interactions and rates of nutrient cycling within ecosystems. {H}owever, we still know little about either the underlying causes of these stoichiometric differences or the consistency of these differences across large geographical extents. 2. {H}ere, we analyse elemental (carbon, nitrogen, phosphorus) composition of 872 aquatic macroinvertebrates (71 species) inhabiting tank bromeliads (n=140) from five distantly located sites across {C}entral and {S}outh {A}merica to (i) test phylogenetic, trophic and body size scaling explanations for why organisms differ in elemental composition and (ii) determine whether patterns in elemental composition are universal or context dependent. 3. {T}axonomy explained most variance in elemental composition, even though phylogenetic signals were weak and limited to regional spatial extents and to the family level. {T}he highest elemental contents and lowest carbon:nutrient ratios were found in organisms at high trophic levels and with smaller body size, regardless of geographical location. 4. {C}arnivores may have higher nutrient content and lower carbon:nutrient ratios than their prey, as organisms optimize growth by choosing the most nutrient-rich resources to consume and then preferentially retain nutrients over carbon in their bodies. {S}maller organisms grow proportionally faster than large organisms and so are predicted to have higher nutrient requirements to fuel {RNA} and protein synthesis. {G}eography influenced the magnitude, more than the direction, of the ecological and/or phylogenetic effects on elemental composition. 5. {O}verall, our results show that both ecological (i.e. trophic group) and evolutionary drivers explain among-taxa variation in the elemental content of invertebrates, whereas intraspecific variation is mainly a function of body size. {O}ur findings also demonstrate that restricting analyses of macroinvertebrate stoichiometry solely to either the local scale or species level affects inferences of the patterns in invertebrate elemental content and their underlying mechanisms.},
  keywords = {body size scaling ; carnivores ; detritivores ; ecological stoichiometry ; macroinvertebrates ; nitrogen ; phosphorous ; phylogenetic signal ; {COSTA} {RICA} ; {BRESIL}},
  booktitle = {},
  journal = {{F}unctional {E}cology},
  volume = {32},
  numero = {10},
  pages = {2448--2463},
  ISSN = {0269-8463},
  year = {2018},
  DOI = {10.1111/1365-2435.13197},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074085},
}